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Finding the Fourth Proportional to 18,502.31, 25,537.93 and 11,424.66

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Solution

The fourth proportional to 18,502.31, 25,537.93 and 11,424.66 is: 15,768.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,502.31 : 25,537.93 = 11,424.66 : x
  2. Step 2: Convert to fraction form
    18,502.31/25,537.93 = 11,424.66/x
  3. Step 3: Cross multiply
    18,502.31x = 25,537.93 × 11,424.66
  4. Step 4: Simplify right side
    18,502.31x = 291,762,138.79
  5. Step 5: Solve for x
    x = 291,762,138.79/18,502.31
  6. Step 6: Final answer
    x = 15,768.96

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.